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  <h2 class="title">简介</h2>
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    PHP 具有完整的对象模型。特性包括：
    <a href="language.oop5.visibility.html" class="link">访问控制</a>，<a href="language.oop5.abstract.html" class="link">抽象类</a>和 <a href="language.oop5.final.html" class="link">final</a> 类与方法，附加的<a href="language.oop5.magic.html" class="link">魔术方法</a>，<a href="language.oop5.interfaces.html" class="link">接口</a>，<a href="language.oop5.cloning.html" class="link">对象复制</a>。
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   PHP 对待对象的方式与引用和句柄相同，即每个变量都持有对象的引用，而不是整个对象的拷贝。参见
   <a href="language.oop5.references.html" class="link">对象和引用</a>。
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  <div class="tip"><strong class="tip">小技巧</strong><p class="simpara">请参见<a href="userlandnaming.html" class="xref">用户空间命名指南</a>。</p></div>
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